Assessment of Perturb and Observe MPPT Algorithm Implementation Techniques for PV Pumping Applications

Elgendy, Mohammed A.; Zahawi, Bashar; Atkinson, David

doi:10.1109/tste.2011.2168245

Cited by 713 publications

(325 citation statements)

References 18 publications

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“…A single diode model with five parameters is considered in this work (Batzelis, Kampitsis, Papathanassiou, & Manias, 2015;Elgendy, Zahawi, & Atkinson, 2012). The two vital parameters involved in any MPPT algorithm are perturbation time and perturbation step size.…”

Section: Analysis On Modified Perturb and Observe Mppt Algorithmmentioning

confidence: 99%

<b>Impact of modified perturb and observe control on MPPT of PV/battery fed three - port DC‐DC converter

Mahendran

Ramaprabha

2017

Acta Sci. Technol.

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ABSTRACT. This paper presents the modified perturb and observe (P&O) maximum power point tracking (MPPT) method for photovoltaic (PV) fed three-port DC-DC converter in PV/battery hybrid system. The proposed MPPT technique reduces the drift problem which occurs in the conventional MPPT methods by including the data of change in current (ΔI) in addition to the data used in the conventional P&O algorithm. The drift phenomenon and its effects are clearly demonstrated in this paper. The ability of the proposed P&O method to address this issue is proved by comparing the conventional P&O algorithm in different modes of operation. The performance assessment includes peak overshoot, settling time, MPP ratio and stability. The experimental validation was implemented using DSPIC30F4011 microcontroller. From the analysis and results, it could be seen that the modified P&O showed better performance in terms of accuracy in tracking the maximum power, less tracking time, high MPP ratio and reduced drift in the changing weather conditions. Keywords: current-voltage characteristics, DC-DC power converters, drift, photovoltaic systems, power demand, pulse width modulation.Impacto da modificação perturbar e observar de controle na MPPT de PV / bateria fed Três -port conversor DC-DC RESUMO. Este artigo apresenta o método de monitoramento de ponto de potência máximo (MPPT) modificado e observado (P&O) para o conversor DC-DC de três portas alimentado por energia fotovoltáica (PV) no sistema híbrido PV/bateria. A técnica MPPT proposta reduz o problema de deslocamento (drift) que ocorre nos métodos MPPT convencionais, incluindo os dados de mudança na corrente (ΔI), além dos dados usados no algoritmo P&O convencional. O fenômeno do deslocamento (drift) e seus efeitos estão claramente demonstrados neste artigo. A capacidade do método de P&O proposto para resolver este problema é comprovado comparando com o algoritmo de P&O convencional em diferentes modos de operação. A avaliação de desempenho inclui o superávit do pico, tempo de estabilização, relação de MPP e estabilidade. A validação experimental foi implementada usando o microcontrolador DSPIC3o30F4011. A partir da análise e dos resultados, verificou-se que o P&O modificado mostrou melhor desempenho em termos de precisão no rastreamento da potência máxima, menor tempo de rastreamento, alta relação de MPP e deslocamento reduzido nas condições climáticas em constante mudança.Palavras-chave: características corrente-tensão, conversores de potência DC-DC, deslocamento, sistemas fotovoltáicos, demanda de energia, modulação de largura de pulso.

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Section: Analysis On Modified Perturb and Observe Mppt Algorithmmentioning

confidence: 99%

<b>Impact of modified perturb and observe control on MPPT of PV/battery fed three - port DC‐DC converter

Mahendran

Ramaprabha

2017

Acta Sci. Technol.

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“…The following algorithms are the most fundamental MPPT algorithms, and they can be developed using micro controllers. The MPPT algorithm operates based on the truth that the derivative of the output power (P) with respect to the panel voltage (V) is equal to zero at the maximum power point [10]. Various maximum power point algorithms are available in order to improve the performance of photovoltaic system by effectively tracking the MPP.…”

Section: Mppt Control Algorithmmentioning

confidence: 99%

Design and Development of Maximum Power Point Tracker for Solar Module Using Microcontroller

Tabassum¹,

Jahan²,

Jahan³

et al. 2017

OALib

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The main objective of this paper is to design and develop a Maximum Power Point Tracker (MPPT) for solar modules using microcontroller. Maintaining a solar panel or an array of panels without an MPPT will often result in power loss, which in return requires installing more panels for the same power requirement. This will also result in premature battery failure or capacity loss. This is why the controllers of all solar power system should employ some method for maximum power point tracking (MPPT). Over the past decades many MPPT techniques have been published. In this paper, it is shown that a hardware based system has been designed using microcontroller. First based on the Perturb & Observe (P&O) MPPT algorithm, a complete code has been written and burnt into microcontroller IC. Then the whole system has been designed using buck boost converter and Hall sensor. The microcontroller takes the voltage and current output from the PV module and determines the maximum power point of the PV module. If we want to use the output power of the module to charge a battery, the MPPT will operate the PV module in its maximum power point despite the varying voltage level of the battery as well as the variation of solar radiation. The performance of the developed system has been studied and found working satisfactorily.

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“…This is done by utilizing a boost converter whose duty cycle is varied by using a mppt algorithm. Few of the many algorithms are listed below [3], [4], [5] and [8].…”

Section: Vmppt Techniquementioning

confidence: 99%

Modelling & Simulation of Photovoltaic System to Optimize the Power Output Using DC-DC Converter

ARORA¹,

sharma²

2014

IJAREEIE

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ABSTRACT:The recent upsurge in the demand of PV systems is due to the fact that they produce electric power without hampering the environment by directly converting the solar radiation into electric power. However the solar radiation never remains constant. It keeps on varying throughout the day. The need of the hour is to deliver a constant voltage to the grid irrespective of the variation in temperatures and solar insolation. In this paper I have designed a circuit such that it delivers constant and stepped up dc voltage to the load. I have studied the open loop characteristics of the PV array with variation in temperature and irradiation levels. Then coupled the PV array with the buck boost converter in such a way that with variation in load, the varying input current and voltage to the converter follows the open circuit characteristic of the PV array closely. At various insolation levels, the load is varied and the corresponding variation in the input voltage and current to the boost converter is noted. It is noted that the changing input voltage and current follows the open circuit characteristics of the PV array closely. KEYWORDS:Photovoltaic, Buck-Boost, Maximum Power Point, Direct Current I.INTRODUCTIONThe Conventional sources of energy are rapidly depleting. Moreover the cost of energy is rising and therefore photovoltaic system is a promising alternative. They are abundant, pollution free, distributed throughout the earth and recyclable. The hindrance factor is its high installation cost and low conversion efficiency. Therefore our aim is to increase the efficiency and power output of the system. It is also required that constant voltage be supplied to the load irrespective of the variation in solar irradiance and temperature. PV arrays consist of parallel and series combination of PV cells that are used to generate electrical power depending upon the atmospheric conditions ( solar irradiation and temperature). So it is necessary to couple the PV array with a boost converter. Moreover our system is designed in such a way that with variation in load, the change in input voltage and power fed into the converter follows the open circuit characteristics of the PV array. Our system can be used to supply constant stepped up voltage to dc loads. Solar energy has been harnessed by humans since ancient times using a variety of technologies. Solar radiation, along with secondary solar-powered resources such as wave and wind power, hydro-electricity and biomass, account for most of the available non-conventional type of energy on earth. Only a small fraction of the available solar energy is used [13]. Solar powered electrical generation relies on photovoltaic system and heat engines. Solar energy's uses are limited only by human creativity. To harvest the solar energy, the most common way is to use photo voltaic panels which will receive photon energy from sun and convert to electrical energy. Solar technologies are broadly classified as either passive solar or active solar depending on the way they detain, conve...

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Assessment of Perturb and Observe MPPT Algorithm Implementation Techniques for PV Pumping Applications

Cited by 713 publications

References 18 publications

<b>Impact of modified perturb and observe control on MPPT of PV/battery fed three - port DC‐DC converter

<b>Impact of modified perturb and observe control on MPPT of PV/battery fed three - port DC‐DC converter

Design and Development of Maximum Power Point Tracker for Solar Module Using Microcontroller

Modelling & Simulation of Photovoltaic System to Optimize the Power Output Using DC-DC Converter

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